E having done副词

B may be分开may是谓语动词，maybe=副词 偏口语化
C it is that强调句 wordy不优 that is时态不对

正常语序
perhaps none （ Of all the vast tides of migration that have swept through history ）
was more concentrated than the wave that brought 12 million immigrants onto American shores in little more than three decades.

虽然排除法最后选了A，但是无法理解为什么A需要用过去完成时，had done
感觉用一般过去时会好一点

B rather是副词，不能连接to avoid 和to come
C economy's ability错误
D were fearing错误
E it instead coming中it指代economy，应用并列结构

B were what多余 分号后面没有谓语动词不是完整句子

# people who have A also suffer from F = # people who suffer from F also have A. 因为 A is much less common than F, 因此 the percentage of people who suffer from F also have A 肯定小于95%.

E 代词不要放在插入语里

similar to 介词后面不能跟句子

DE中who would later make his reputation as a labor leader 修饰Chandler Owen and A. Philip Randolph

为什么D选项不可以？感觉C和D选项表达的都是一个意思啊？

结论是说有蒲公英的地草长得好是因为吸引了更多的黄蜂
B说的是 有蒲公英的地草长得好是因为交叉传粉 但是反驳的是by……状语
而E直接反驳“不是有蒲公英的地草长得好，而是另一篇地让草长得不好”
这么理解对吗？

qualify 意思是 make more specific 具体说明;使语气缓和 想了很久错选C 脑补反垄断就要 granting more bank charters

A 正确 link with alcohol 和red wine平行
B with a moderate alcohol consumption, （particularly） red wine中red wine是名词做同位语修饰consumption，错误
C consumption和red wine平行 错误 应该和红酒消耗量平行
D 同B
E red wine和in the report平行。red wine和consumption应该都在报告中

or so=about
A where从句修饰society,they 指代wasps错误。蜜蜂组成是蜂针/头/肚子........
CD wasps 是复数，means错误
E living和number之间没有因果和伴随的关系

not actually defined表明没有正式定义（有点像没有官方说法），但这不代表作者否定两者的联系！注意中间用的yet，转折词之后的才是作者的态度。

一定注意文中没提到的东西

类比，大和小的类比，举出两者间的差别 或 举出另一个相似于这两者的案例但是具有相反的结果，本题的方向是找到两者间的区别

产量上升，价格却上升
解释说天气影响的，其实就是问加强，加强因果联系

第二个不是结论！！是一个claim， against the previous argument

2n因子数是n的2倍